PRO-POINT 8784720 Mode D'emploi page 22

8784720
PROBLEM(S)
Burn
through at
weld.
Electrode
tips
overheat.
Electrode
tips arc on
workpieces.
There is a
hole in the
middle of
the weld.
Spatter or
molten
material
being
expelled
out during
welding
operation.
22
220V SPOT WELDER
POSSIBLE CAUSE(S)
1. Weld time too long.
2. Tongs misaligned.
3. Electrode tips are
damaged or
deformed.
1. Not enough tong
pressure.
2. Weld time too long.
3. Material too thick for
spot welder.
1. Tong pressure
inadequate.
2. Tips are not aligned
correctly.
3. Base material may be
welded to tips
causing high
resistance and poor
electrical current flow.
Contact area of the tips
is too large.
1. Incorrect tip
alignment.
2. Excessive tong
pressure.
3. Weld time too long.
4. Inconsistent weld
nugget.
5. Not enough tong
pressure.
For technical questions call 1-800-665-8685
SUGGESTED SOLUTION(S)
1. Shorten weld time.
2. Realign tongs.
3. Dress or replace the
electrode tips
1. Increase tong pressure.
2. Reduce weld time.
3. Ensure that workpiece
thickness is within
capacity of spot
welder.
1. Increase tong
pressure.
2. Realign the tips or
dress the tips to
proper diameter (see
Dressing the Tips).
3. Clean or dress the tips
(see Dressing the
Tips).
Change to a smaller tip
diameter or dress the tips
back to the original
diameter (see Dressing
Tips).
1. Dress the tips so that
they align and are flat
on the material (see
Dressing the Tips).
2. Reduce tong pressure.
3. Reduce the weld time.
4. Inconsistent weld time.
Use a timer.
5. Increase tong
pressure.
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